Solar Distributed Generation

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In distributed solar generation systems, every generation unit is enabled to perform its main functions at the individual photovoltaic (PV) panel level rather than on a string or array of photovoltaic modules.

Two implementations are possible using either solar micro-inverters – fed by a single panel and directly connected to the AC grid – or by means of power optimizers – fed by a single panel in a string that performs the Maximum Peak Power Tracking (MPPT) with its output connected to feed a single inverter.

The power rating for each unit is typically between 50 and 400 W and a data logger and internet gateway collects data from all the panels and inverters and sends this information to a local or remote monitoring and control access point with efficiency and reliability being key to a successful design.

Semiconductor technologies and products are key enablers to competitive designs and we have a range of products and solutions including silicon-carbide (SiC) MOSFETs and silicon-carbide (SiC) diodes, HV super-junction MOSFETs and IGBTs, application-specific analog products (ASSP) – including and IGBT and MOSFET gate drivers – and STM32 microcontrollers that can help developers meet these challenges.

In residential photovoltaic systems Micro inverters are often used as an alternative to string inverters to perform the DC to AC power conversion...
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Power Optimizer
Power Optimizer
In architectures based on the use of power optimizers, the maximum power point tracking (MPPT) function is performed at the level of...
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